/*
 * JFugue - API for Music Programming
 * Copyright (C) 2003-2008  David Koelle
 *
 * http://www.jfugue.org 
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *  
 */

package org.jfugue;

import javax.sound.midi.MidiDevice;
import javax.sound.midi.MidiSystem;
import javax.sound.midi.MidiUnavailableException;

public final class IntelligentDeviceResolver {
	public static MidiDevice selectReceiverDevice()
			throws MidiUnavailableException {
		return selectDevice("midi", "usb", "out");
	}

	public static MidiDevice selectTransmitterDevice()
			throws MidiUnavailableException {
		return selectDevice("midi", "usb", "in");
	}

	public static MidiDevice selectDevice(String... keywords)
			throws MidiUnavailableException {
		int bestMatch = 0;
		int thisMatch = 0;
		MidiDevice device = null;

		MidiDevice.Info[] info = MidiSystem.getMidiDeviceInfo();
		for (int i = 0; i < info.length; i++) {
			String infoString = info[i].toString().toLowerCase();
			thisMatch = 0;
			for (int k = 0; k < keywords.length; k++) {
				if (infoString.contains(keywords[k])) {
					thisMatch++;
				}
			}
			if (thisMatch > bestMatch) {
				device = MidiSystem.getMidiDevice(info[i]);
				bestMatch = thisMatch;
			}
		}

		if (device == null) {
			throw new JFugueException(
					JFugueException.INTELLIGENT_RESOLVER_FAILED);
		}

		return device;
	}
}
